Koh-i-noor Magic Erasers

Are these not the most amazing looking erasers? These are Koh-inoor Magic erasers available from a seller on Ebay. They are almost too pretty to actually use but use them I did and I was pleased at how well they actually worked. They are not as good as the white plastic Staedtler Mars erasers that are my go-to but the rainbow colors will surely brighten my day.